Riot developed these pucks to be fast and long lasting and they succeeded. None of Riot's pucks are cast material. They are all extruded, and the pucks are cut from full sheets. Choose between 3 materials:
UHMW - virgin grade, meaning never recycled (fast)
Delrin - the same grade, virgin (faster)
Acrylic - the pucks shed less speed than any pucks we have tried to date while still providing a good amount of friction with the road. They last forever and come with translucent velcro and a random colored Riot sticker (fastest)
Riot King pucks have a pentagonal shape.